A powershell function to consume as much memory as possible

Consume-Memory.ps1

## A helper to check the memory limit of a PS remote session
function Consume-Memory
{
    ## Get the total physical memory size
    $totalPhysicalMem = get-ciminstance -class "cim_physicalmemory" | Measure-Object -Sum -Property Capacity | % Sum
    Write-Host "Total Free Physical Memory: $($totalPhysicalMem / 1gb) GB" -ForegroundColor Green

    ## Create a two-dimensional array (20, N)
    $array = @(,@(1)) * 20
    foreach ($i in 0..19)
    {
        ## Concatenate arrays in exponential way, to comsume memory as much as possible.
        ## When we hit an OutOfMemoryException, it means CLR can no longer allocate a large array
        ## for twice the size of `$array[$i]`. In this case, there still could be a lot memory
        ## left, so we go another round to consume rest of the memory. 20 rounds should be enough
        ## to run out almost all memory.
        foreach ($p in 1..30)
        {
            try {
                [array]$array[$i] += $array[$i]
            } catch [System.OutOfMemoryException] {
                $s = gps -Id $pid
                Write-Host "OutOfMemoryException caught. `$array[$i].Count: $($array[$i].Count); WorkingSet: $($s.WorkingSet64/1gb) GB" -ForegroundColor Yellow
                break
            }
        }
    }
}